shaft
type: Concept
preferred label: شفت @fa
related: spline (mechanical components)

spline (mechanical components)
type: Concept
broader: machine components
preferred label: نوار باریک (مولفه مکانیکی) @fa
related: machine tool spindles
related: shaft
related: gear

machine components
type: Concept
narrower: spline (mechanical components)
preferred label: اجزای ماشین @fa

machine tool spindles
type: Concept
preferred label: ماشین ابزار اسپیندل @fa
related: spline (mechanical components)

gear
type: Concept
preferred label: چرخ‌دنده @fa
related: spline (mechanical components)